Abstract: A torsion damping mechanism with a torsion damper with an input side and an output side, where the input side and the output side are connected elastically to each other by spring-type stored energy elements for rotation in common auxiliary mass which can rotate coaxially to the torsion damping mechanism is connected frictionally to the torsion damping mechanism by way of a friction area, where the frictional connection between the torsion damping mechanism and the auxiliary mass has a predetermined frictional moment. When this moment is exceeded during the occurrence of peaks in the torque being applied to the torsion damping mechanism, the auxiliary mass can slip or slips.

Abstract: A vibration damping device for a motor vehicle drive system includes a base body rotatable about an axis of rotation and a deflection mass arrangement having at least one deflection mass and a deflection path associated with the at least one deflection mass. The at least one deflection mass is movable along the deflection path when the base body rotates about the axis of rotation. The deflection path defines a radial outer area of a movement space in the base body in which the at least one deflection mass is movable. The base body includes a carrier element in which the movement space is arranged and a first closure element connected with and constructed separately from the carrier element and arranged at a first axial side of the carrier element for closing the movement space in a first axial direction.

Abstract: A vibration damping device for a drive system of a motor vehicle, includes a deflection mass arrangement arranged in a base body which is rotatable about an axis of rotation (A). The deflection mass arrangement includes at least one deflection mass and a deflection path associated with the at least one deflection mass and along which the deflection mass moves during rotation of the base body about the axis of rotation (A). The deflection path has a vertex area and deflection areas on both sides of the vertex area. The deflection areas have a decreasing distance from the axis of rotation (A) as they proceed from the vertex area toward their circumferential end areas. A positive rolling arrangement is arranged between the at least one deflection mass and the deflection path which generates a rolling movement of the at least one deflection mass during the movement of the at least one deflection mass along the associated deflection path and thereby prevents a sliding movement of the deflection mass.

Abstract: A vibration damping system for a drive system of a motor vehicle includes an electric machine controllable by a control device for exerting a counter-torque on a rotating constructional group. A deflection mass arrangement is arranged at the rotating constructional group having at least one deflection mass and a deflection path associated with the at least one deflection mass and along which the deflection mass can move. The deflection path associated with the at least one deflection mass has a vertex area and deflection areas proceeding from the vertex area. The vertex area is an area with the greatest radial distance of the deflection path from an axis of rotation of the rotating constructional group.

Abstract: A vibration damping device for a drive system of a motor vehicle includes a base body rotatable about an axis of rotation (A) and a deflection mass arrangement arranged in the base body having at least one deflection mass and a deflection path associated with the at least one deflection mass and along which the at least one deflection mass is movable during rotation of the base body about the axis of rotation. The deflection path has a vertex area and deflection areas emanating from the vertex area in opposite directions. The deflection areas proceed from the vertex area in substantially opposite axial directions.

Abstract: A torsional vibration damper has a drive-side damper element and a driven-side damper element which is rotatable relative to the drive-side element against the action of a damping device, wherein the damping device serves to transmit torque between the two damper elements and has a plurality of coupling bodies, each of which is received in at least one guide path of each damper element, and, during a relative movement of the damper elements with respect to one another, undergoes a deflection in at least one of its guide paths. Guide paths which extend farther in the circumferential direction than in the radial direction and guide paths which extend farther in the radial direction than in the circumferential direction are provided.

Abstract: A pressure plate for a friction clutch has a friction-surface region which can be pressed against a friction-lining arrangement of a clutch disk or the like. The pressure plate, in the friction-surface region, is formed at least partially from a first material which provides rapid dissipation of heat generated by friction, and in a body region which adjoins the friction-surface region, is formed from a second material which has a high heat absorption capacity for the heat dissipated from the friction-surface region.

Abstract: A rotary vibration damping device for damping rotary vibrations in a drive train through which the output torque of an internal combustion engine is transmitted in a drive power flow direction to driving wheels ot a motor vehicle. The damping device includes a first inertial mass arrangement that is connected to a crank shaft of the internal combustion engine for the purpose of rotation around a rotational axis, a second inertial mass arrangement that is connected via a spring device to the first inertial mass arrangement for common rotation around the rotational axis and for relative rotation with respect to the first inertial mass arrangement, and at least a third inertial mass arrangement that is connected to the drive train before the spring device in the drive power flow direction for rotation around the rotational axis. The third inertial mass arrangement can be disconnected from the drive train, with respect to rotary drive, when a predetermined operating state is attained.

Abstract: A friction clutch for a motor vehicle is embodied with a centrifugal mass device, which has at least one mass-bearing compensating system. At least one component of the centrifugal mass device is equipped, to form the compensating system, with at least one chamber that holds, to a predetermined degree of fullness, a fluid medium, whose position in the chamber changes when a torsional vibration occurs. The effect resulting from this position change depends on the density and viscosity of the medium, on the one hand, and, on the other hand, on the arrangement of the chamber, which determines the vibrational behavior of the medium, the shape of the chamber, which determines the movement resistance, and its degree of fullness.

Abstract: A torsional vibration damper has a drive-side transmission element and an output-side transmission element rotatable relative thereto. The output-side transmission element is centered relative to the drive-side transmission element via a radial slide bearing and can be held at a predeterminable axial distance from the drive-side transmission element by means of an axial slide bearing. The axial slide bearing has an inner circumference larger than the outer circumference of the radial slide bearing and rests, on the one hand, on at least one component of the first transmission element acting on the outer circumference of the radial slide bearing and, on the other, on at least one component of the other transmission element arranged on the inner circumference of the radial slide bearing, so as to form, together with these components, a covering for the radial slide bearing, by which the latter can be protected against an unwanted afflux of solid particles.

Abstract: A friction clutch for a motor vehicle is embodied with a centrifugal mass device, which has at least one mass-bearing compensating system. At least one component of the centrifugal mass device is equipped, to form the compensating system, with at least one chamber that holds, to a predetermined degree of fullness, a fluid medium, whose position in the chamber changes when a torsional vibration occurs. The effect resulting from this position change depends on the density and viscosity of the medium, on the one hand, and, on the other hand, on the arrangement of the chamber, which determines the vibrational behavior of the medium, the shape of the chamber, which determines the movement resistance, and its degree of fullness.

Abstract: A torsional vibration damper is equipped with a drive-side transmission element and an output-side transmission element deflectable relative thereto. A friction device is connected between the transmission elements. The friction device has a friction element with at least two different friction areas. The friction element is arranged in a circumferential opening having circumferential ends in one of the transmission elements. As long as the friction element is movable within the circumferential opening relative to the ends of the circumferential opening, only a first friction area of the friction element is active. When the friction element contacts one of the circumferential ends of the circumferential opening, only a second friction area of the friction element is active.